NetworkInformation: effectiveType property

Limited availability

This feature is not Baseline because it does not work in some of the most widely-used browsers.

Note: This feature is available in Web Workers.

The effectiveType read-only property of the NetworkInformation interface returns the effective type of the connection meaning one of slow-2g, 2g, 3g, or 4g. This value is determined using a combination of recently observed, round-trip time and downlink values.

Value

A string that is either slow-2g, 2g, 3g, or 4g.

Specifications

Specification
Network Information API
# dom-networkinformation-effectivetype

Browser compatibility

Report problems with this compatibility data on GitHub
desktopmobile
Chrome
Edge
Firefox
Opera
Safari
Chrome Android
Firefox for Android
Opera Android
Safari on iOS
Samsung Internet
WebView Android
WebView on iOS
effectiveType

Legend

Tip: you can click/tap on a cell for more information.

Full support
Full support
No support
No support

See also